Noble Gases,
Halogens
1) How many outer shell electrons are found in an atom of
(a) oxygen
(b) calcium
(c) aluminum
2) Is sodium a metal, nonmetal, or semiconductor?
What is the charge on sodium ion?
3) Is iodine a metal, nonmetal, or semiconductor?
What is the charge on an iodine ion?
4) How many protons (p), neutrons(n) and electrons(e) are in the following atoms? To determine the number of neutrons, assume that the isotope you are working with is the one whose mass number is closest to the atomic weight of the element.
Silicon: p = ____, n = _____, e = ______
Iron: p = ____, n = _____, e = ______
Silver: p
= ____, n = _____, e = ______
5) Predict the group or family for the following ions:
a) anions whose charge is -1 _____________
b) cations whose charge is +2 _____________
c) cations whose charge is +3 _____________
d) anions whose charge is -3 _____________
e) cations whose charge is +1 _____________